Sleeves for affixing artificial joints to bone

Details Sleeves for affixing artificial joints to bone Sleeves for affixing artificial joints to bone

1986-09-15

1988-12-13

Apley, Richard J.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

623 16, 623 23, A61F 230, A61F 232

Patent

active

047908521

ABSTRACT:
Sleeve for affixing artificial joints to bone are provided which include a cone-shaped portion centered on the sleeve's longitudinal axis and a protruding portion offset from the longitudinal axis having an elliptically-shaped leading edge. Cavities which are essentially a perfect match to the shape of the sleeve can be readily formed in the patient's bone. The shape of the cavities generally correspond to the inside shape of the patient's hard bone. Accordingly, when implanted, the sleeves transfer stresses from the prosthesis to hard bone as is desired.

REFERENCES:
patent: 3894297 (1975-07-01), Miltelmeier et al.
patent: 4670015 (1987-06-01), Freeman
"The Freeman Total Hip System," Corin Medical Limited, Gloucestershire, England, 1985.
Freeman, M. A. R., "Why Resect the Neck?", The Journal of Bone and Joint Surgery, vol. 68-B, No. 3, May 1986, pp. 346-349.
Freeman et al., in The Young Patient with Degenerative Hip Disease, Sevastik J. Goldie I (ed.), Stockholm, Sweden, 1986, pp. 281-292.

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